If you've ever wondered why there seems to be a Mattress Firm on every corner in your city, you're not alone. But one explanation for this phenomenon is more extreme than you might expect.

On Tuesday, a comment on Reddit claiming that Mattress Firm, the largest specialty mattress retailer in the US, is a money-laundering operation went viral — but it has since been deleted, The Next Web reported.

"Mattress Firm is some sort of giant money laundering scheme," a Reddit user wrote, adding: "I remember seeing 4 mattress firms all on each corner of an intersection once, and there is no way there is such a demand for mattresses."

Mattress Firm, which acquired Sleepy's in 2015, now has over 3,500 stores, sometimes in high concentrations. But Reddit users argue that there are too many, especially given that it stocks a product that people typically buy every seven to 10 years.

This map shows the concentration of Mattress Firms in Austin.
Google Maps

It's a popular conspiracy theory on Reddit.

"Multiple stores = more places to shuffle money between and more sources for fake money to appear to come from," another user wrote.

The South African retailer Steinhoff bought Mattress Firm for $3.8 billion in 2016. At the time, analysts were skeptical about why Steinhoff had forked over so much for a business increasingly threatened by new startups such as Casper.